From eafbc848af7df611081d1d161f19578a155134c9 Mon Sep 17 00:00:00 2001
From: jtseng20 <70609819+jtseng20@users.noreply.github.com>
Date: Thu, 29 Sep 2022 01:12:49 -0700
Subject: [PATCH] Correct acceleration finite difference

Original code placed division in wrong line, corrected finite difference calculation for acceleration in the kinetic features.
---
 fairmotion/tasks/clustering/features/utils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fairmotion/tasks/clustering/features/utils.py b/fairmotion/tasks/clustering/features/utils.py
index 739a864..e2205a0 100644
--- a/fairmotion/tasks/clustering/features/utils.py
+++ b/fairmotion/tasks/clustering/features/utils.py
@@ -129,8 +129,8 @@ def calc_average_acceleration(
         ) / frame_time
         v1 = (
             positions[i + j][joint_idx]
-            - positions[i + j - 1][joint_idx] / frame_time
-        )
+            - positions[i + j - 1][joint_idx]
+        ) / frame_time
         average_acceleration += (v2 - v1) / frame_time
         current_window += 1
     return np.linalg.norm(average_acceleration / current_window)